HOMEVULNERABILITIESCVE-2016-4796
MEDIUM

CVE-2016-4796

CWE-119Published: February 3, 2017· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

Heap-based buffer overflow in the color_cmyk_to_rgb in common/color.c in OpenJPEG before 2.1.1 allows remote attackers to cause a denial of service (crash) via a crafted .j2k file.

NVD Source

Technical Analysis

CVE-2016-4796 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

Fedora1 product(s)
fedora
uclouvain1 product(s)
openjpeg
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://www.openwall.com/lists/oss-security/2016/05/13/2
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1335482
PATCHhttps://github.com/uclouvain/openjpeg/commit/162f6199c0cd3ec1c6c6dc65e41b2faab92b2d91
PATCHhttps://github.com/uclouvain/openjpeg/issues/774
PATCHhttp://www.openwall.com/lists/oss-security/2016/05/13/2
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1335482
PATCHhttps://github.com/uclouvain/openjpeg/commit/162f6199c0cd3ec1c6c6dc65e41b2faab92b2d91
PATCHhttps://github.com/uclouvain/openjpeg/issues/774

All References (18)

→
http://www.openwall.com/lists/oss-security/2016/05/13/2Mailing List · Patch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1335482Issue Tracking · Patch
→
https://github.com/uclouvain/openjpeg/commit/162f6199c0cd3ec1c6c6dc65e41b2faab92b2d91Issue Tracking · Patch · Third Party Advisory
→
https://github.com/uclouvain/openjpeg/issues/774Issue Tracking · Patch
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FFMOZOF2EI6N2CR23EQ5EATWLQKBMHW/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BJM23YERMEC6LCTWBUH7LZURGSLZDFDH/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFRD35RIPRCGZA5DKAKHZ62LMP2A5UT7/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPMDEUIMHTLKMHELDL4F4HZ7X4Y34JEB/
→
https://www.oracle.com/security-alerts/cpujul2020.html
→
http://www.openwall.com/lists/oss-security/2016/05/13/2Mailing List · Patch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1335482Issue Tracking · Patch
→
https://github.com/uclouvain/openjpeg/commit/162f6199c0cd3ec1c6c6dc65e41b2faab92b2d91Issue Tracking · Patch · Third Party Advisory
→
https://github.com/uclouvain/openjpeg/issues/774Issue Tracking · Patch
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FFMOZOF2EI6N2CR23EQ5EATWLQKBMHW/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BJM23YERMEC6LCTWBUH7LZURGSLZDFDH/

Quick Facts

CVE IDCVE-2016-4796
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-119
CISA KEVNo
Affected2 vendor(s)
PublishedFeb 3, 2017

Related CVEs (CWE-119)

CVE-2015-0565
10.0
CVE-2015-4432
10.0
CVE-2024-25029
10.0
CVE-2015-5546
10.0
CVE-2015-5118
10.0
CVE-2015-5549
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-4796 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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